LAMMPS (8 Feb 2023)
OMP_NUM_THREADS environment is not set. Defaulting to 1 thread. (src/comm.cpp:98)
  using 1 OpenMP thread(s) per MPI task
# Pour granular particles into chute container, then induce flow

atom_style	sphere
boundary	p p fm
newton		off
comm_modify	vel yes

region		reg block -10 10 -10 10 -0.5 16 units box
create_box	1 reg
Created orthogonal box = (-10 -10 -0.5) to (10 10 16)
  2 by 2 by 1 MPI processor grid

neighbor	0.2 bin
neigh_modify	delay 0

# IMPORTANT NOTE: these values of stiffness (2000) and timestep (0.001)
# are used in this example file to produce a quick simulation and movie.
# More appropriate values for realistic simulations would be
# k = 2.0e5 and dt = 0.0001, as in bench/in.chute.

pair_style      gran/hooke/history 2000.0 NULL 50.0 NULL 0.5 0
pair_coeff	* *

timestep	0.001

fix		1 all nve/sphere
fix		2 all gravity 1.0 spherical 0.0 -180.0
fix		zlower all wall/gran hooke/history 2000.0 NULL 50.0 NULL 0.5 0 		zplane 0.0 2000.0

region		slab block -9.0 9.0 -9.0 9.0 10.0 15.0 units box
fix		ins all pour 3000 1 300719 vol 0.13 50 region slab
Particle insertion: 402 every 3162 steps, 3000 by step 22135

compute		1 all erotate/sphere
thermo_style	custom step atoms ke c_1 vol
thermo		1000
thermo_modify	lost ignore norm no
compute_modify	thermo_temp dynamic/dof yes

#dump		id all atom 1000 dump.pour

#dump		2 all image 1000 image.*.jpg type type #		axes yes 0.8 0.02 view 80 -30
#dump_modify	2 pad 5

#dump		3 all movie 1000 movie.mpg type type #		axes yes 0.8 0.02 view 80 -30
#dump_modify	3 pad 5

run		25000
Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule
Neighbor list info ...
  update: every = 1 steps, delay = 0 steps, check = yes
  max neighbors/atom: 2000, page size: 100000
  master list distance cutoff = 1.2
  ghost atom cutoff = 1.2
  binsize = 0.6, bins = 34 34 28
  1 neighbor lists, perpetual/occasional/extra = 1 0 0
  (1) pair gran/hooke/history, perpetual
      attributes: half, newton off, size, history
      pair build: half/size/bin/newtoff
      stencil: full/bin/3d
      bin: standard
Per MPI rank memory allocation (min/avg/max) = 5.831 | 5.831 | 5.831 Mbytes
   Step        Atoms        KinEng          c_1           Volume    
         0           0  -0              0              6600         
      1000         402   753.1301       0              6600         
      2000         402   1389.6785      0              6600         
      3000         402   1439.3007      16.360577      6600         
      4000         804   1694.9311      52.966189      6600         
      5000         804   1564.7533      67.202593      6600         
      6000         804   1303.6937      65.31424       6600         
      7000        1206   1590.3342      63.948699      6600         
      8000        1206   1489.2483      54.736993      6600         
      9000        1206   1234.442       56.141183      6600         
     10000        1608   1314.3588      49.189127      6600         
     11000        1608   1237.9823      42.555046      6600         
     12000        1608   1142.8729      41.96142       6600         
     13000        2010   1230.1948      49.194135      6600         
     14000        2010   1178.1648      39.43872       6600         
     15000        2010   1031.6441      46.416609      6600         
     16000        2412   1109.7641      45.866965      6600         
     17000        2412   1047.232       38.618366      6600         
     18000        2412   888.02373      41.307438      6600         
     19000        2814   965.06339      40.889834      6600         
     20000        2814   922.71203      40.04001       6600         
     21000        2814   815.9575       38.366756      6600         
     22000        2814   570.89153      37.83039       6600         
     23000        3000   428.71007      37.62527       6600         
     24000        3000   341.87262      24.030639      6600         
     25000        3000   243.78921      22.003596      6600         
Loop time of 2.70972 on 4 procs for 25000 steps with 3000 atoms

Performance: 797131.262 tau/day, 9226.056 timesteps/s, 27.678 Matom-step/s
99.2% CPU use with 4 MPI tasks x 1 OpenMP threads

MPI task timing breakdown:
Section |  min time  |  avg time  |  max time  |%varavg| %total
---------------------------------------------------------------
Pair    | 1.2559     | 1.2759     | 1.2886     |   1.2 | 47.09
Neigh   | 0.29364    | 0.29822    | 0.30487    |   0.8 | 11.01
Comm    | 0.24161    | 0.25182    | 0.26235    |   1.5 |  9.29
Output  | 0.00076819 | 0.00084565 | 0.00098501 |   0.0 |  0.03
Modify  | 0.59267    | 0.61574    | 0.63388    |   2.3 | 22.72
Other   |            | 0.2672     |            |       |  9.86

Nlocal:            750 ave         759 max         734 min
Histogram: 1 0 0 0 0 0 0 1 1 1
Nghost:         381.75 ave         392 max         367 min
Histogram: 1 0 0 0 0 0 1 1 0 1
Neighs:        3569.75 ave        3651 max        3448 min
Histogram: 1 0 0 0 0 0 1 1 0 1

Total # of neighbors = 14279
Ave neighs/atom = 4.7596667
Neighbor list builds = 1151
Dangerous builds = 0

unfix		ins
fix		2 all gravity 1.0 chute 26.0
run		25000
Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule
Per MPI rank memory allocation (min/avg/max) = 10.43 | 10.43 | 10.43 Mbytes
   Step        Atoms        KinEng          c_1           Volume    
     25000        3000   243.78921      22.003596      6600         
     26000        3000   119.4338       18.414134      6600         
     27000        3000   172.50337      12.019175      6600         
     28000        3000   316.78411      12.871972      6600         
     29000        3000   524.47221      16.004598      6600         
     30000        3000   812.57656      20.096736      6600         
     31000        3000   1181.7814      28.226314      6600         
     32000        3000   1612.855       28.279192      6600         
     33000        3000   2075.6364      29.358829      6600         
     34000        3000   2634.5344      36.312508      6600         
     35000        3000   3213.2814      43.992962      6600         
     36000        3000   3900.499       38.674908      6600         
     37000        3000   4594.329       46.025242      6600         
     38000        3000   5367.8353      46.404081      6600         
     39000        3000   6180.9788      56.484589      6600         
     40000        3000   7111.5267      51.165038      6600         
     41000        3000   7998.6331      65.039037      6600         
     42000        3000   9037.3716      69.653749      6600         
     43000        3000   10148.985      65.082635      6600         
     44000        3000   11242.901      62.787818      6600         
     45000        3000   12445.247      64.68269       6600         
     46000        3000   13773.582      59.313484      6600         
     47000        3000   15000.566      54.417728      6600         
     48000        3000   16312.814      60.23943       6600         
     49000        3000   17730.721      60.028021      6600         
     50000        3000   19221.273      62.659312      6600         
Loop time of 5.52345 on 4 procs for 25000 steps with 3000 atoms

Performance: 391059.670 tau/day, 4526.154 timesteps/s, 13.578 Matom-step/s
99.3% CPU use with 4 MPI tasks x 1 OpenMP threads

MPI task timing breakdown:
Section |  min time  |  avg time  |  max time  |%varavg| %total
---------------------------------------------------------------
Pair    | 3.1235     | 3.1506     | 3.1758     |   1.1 | 57.04
Neigh   | 0.47171    | 0.47561    | 0.48174    |   0.5 |  8.61
Comm    | 0.39363    | 0.39957    | 0.4049     |   0.6 |  7.23
Output  | 0.0010759  | 0.0011654  | 0.0012802  |   0.2 |  0.02
Modify  | 0.93409    | 0.95091    | 0.96521    |   1.2 | 17.22
Other   |            | 0.5456     |            |       |  9.88

Nlocal:            750 ave         759 max         744 min
Histogram: 1 0 1 1 0 0 0 0 0 1
Nghost:         404.75 ave         411 max         402 min
Histogram: 1 2 0 0 0 0 0 0 0 1
Neighs:        3694.75 ave        3722 max        3672 min
Histogram: 1 0 0 1 1 0 0 0 0 1

Total # of neighbors = 14779
Ave neighs/atom = 4.9263333
Neighbor list builds = 856
Dangerous builds = 0
Total wall time: 0:00:08
